Postal Service edges closer to bankruptcy

Cites high cost of health care for future retirees

WASHINGTON — The nearly bankrupt US Postal ­Service reported losses on Thursday of $57 million per day in the last quarter and warned it will miss another payment it owes the Treasury, just one week after its first-ever default on a payment for ­future retiree health benefits.

From April to June, losses totaled $5.2 billion, up $2.1 billion from the same period last year.